/**
 * angular2-cookie-law
 *
 * Copyright 2016-2017, @andreasonny83, All rights reserved.
 *
 * @author: @andreasonny83 <andreasonny83@gmail.com>
 */

import {
  Component,
  OnInit,
  ViewEncapsulation,
  HostBinding,
  Input,
  Output,
  EventEmitter,
} from '@angular/core';
import {  animate,
  state,
  trigger,
  style,
  transition,
  AnimationEvent
} from '@angular/animations';
import {
  DomSanitizer,
  SafeHtml,
} from '@angular/platform-browser';

import {
  CookieLawService,
} from './cookie-law.service';

// import {
//   closeIcon,
// } from './icons';

export type CookieLawPosition = 'top' | 'bottom';
export type CookieLawAnimation = 'topIn' | 'bottomIn' | 'topOut' | 'bottomOut';
export type CookieLawTarget = '_blank' | '_self';

@Component({
  selector: 'cookie-law',
  // encapsulation: ViewEncapsulation.None,
  animations: [
    trigger('state', [
      state('bottomOut', style({ transform: 'translateY(100%)' })),
      state('topOut', style({ transform: 'translateY(-100%)' })),
      state('*', style({ transform: 'translateY(0)' })),

      transition('void => topIn', [
        style({ transform: 'translateY(-100%)' }),
        animate('1000ms ease-in-out'),
      ]),

      transition('void => bottomIn', [
        style({ transform: 'translateY(100%)' }),
        animate('1000ms ease-in-out'),
      ]),

      transition('* => *', animate('1000ms ease-out')),
    ])
  ],
  styleUrls: [ './cookie-law.css' ],
  templateUrl: './cookie-law.html',
})
export class CookieLawComponent implements OnInit {
  public cookieLawSeen: boolean;
  @Input() cookieName = "cookieLawSeen";
  @Input('learnMore')
  get learnMore() { return this._learnMore; }
  set learnMore(value: string) {
    this._learnMore = (value !== null && `${value}` !== 'false') ? value : null;
  }

  @Input('target')
  get target() { return this._target; }
  set target(value: CookieLawTarget) {
    this._target = (value !== null && `${value}` !== 'false' &&
                      (`${value}` === '_blank' || `${value}` === '_self')
                     ) ? value : '_blank';
  }

  @Input('position')
  get position() { return this._position; }
  set position(value: CookieLawPosition) {
    this._position = (value !== null && `${value}` !== 'false' &&
                      (`${value}` === 'top' || `${value}` === 'bottom')
                     ) ? value : 'bottom';
  }

  @Output('isSeen')
  private isSeenEvt: EventEmitter<boolean>;

  @HostBinding('attr.seen')
  public isSeen: boolean;
  
  public animation: CookieLawAnimation;
  private closeSvg: SafeHtml;
  public currentStyles: {};
  private _learnMore: string;
  private _target: CookieLawTarget;
  private _position: CookieLawPosition;

  constructor(
    private _service: CookieLawService,
    private domSanitizer: DomSanitizer,
  ) {
    this.isSeenEvt = new EventEmitter<boolean>();
    this.animation = 'topIn';
    this._position = 'bottom';

  }

  ngOnInit(): void {
    this.cookieLawSeen = this._service.seen(this.cookieName);
    if (typeof document !== 'undefined') {
      this.animation = this.position === 'bottom' ? 'bottomIn' : 'topIn';

      this.closeSvg = '<span class="clickable uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" icon="close" ratio="1"><path fill="none" stroke="#000" stroke-width="1.06" d="M16,16 L4,4"></path><path fill="none" stroke="#000" stroke-width="1.06" d="M16,4 L4,16"></path></svg></span> ' ;

      if (this.cookieLawSeen) {
        this.isSeen = true;
      }

      this.currentStyles = {
        'top': this.position === 'top' ? '0' : null,
        'bottom': this.position === 'top' ? 'initial' : null,
      };
    }
  }

  afterDismissAnimation(evt: AnimationEvent) {
    if (evt.toState === 'topOut' ||
        evt.toState === 'bottomOut') {
      this.isSeen = true;
      this.isSeenEvt.emit(this.isSeen);
    }
  }

  public dismiss(evt?: MouseEvent): void {
    if (evt) {
      evt.preventDefault();
    }

    this._service.storeCookie(this.cookieName);
    this.animation = this.position === 'top' ? 'topOut' : 'bottomOut';
  }
}